Uranus is different from the other planets in that it spins on its side. Both
poles will alternately point directly at the Sun. This unusual behavior is
thought to have been the result of a collision with another large body.

Uranus remained undiscovered, being hardly noticeable to the naked eye,
until 1781, when astronomer William Herschel noticed it whilst looking
through his home made telescope.

Uranus is comprised of a large mantle of ammonia, water, ice and methane
around a large iron silicate core. The atmosphere is mainly hydrogen, helium
and methane. Uranus, like Saturn, also has rings. These rings are mode up of
small rocks, ice and dust.